4MA0 Higher January 2015 Paper 3R Q8
8 Lisa sees a dress in a sale.
The normal price of the dress is $45
The price of the dress is reduced by 12% in the sale.
(a) Work out the price of the dress in the sale. (3)
Lisa’s weekly pay increases from $525 to $546
(b) Calculate her percentage pay increase. (3)
| Scheme | Marks |
|---|---|
| \(\dfrac{12}{100} \times 45\) (=5.4) | M1 |
| 45 – “5.4” | M1 |
| 39.6(0) | A1 |
| (3) |
Notes
M1: or M2 for 45 × 0.88 oe eg
45 × (1 – 0.12)
(NB 45 × (1 – 12%) scores zero unless accompanied by a correct answer)
M1: Dep on correct method for 12%
| Scheme | Marks |
|---|---|
| 546 – 525 (=21) or 546/525 (=1.04) | M1 |
\(\dfrac{\text{‘}21\text{’}}{525} \times 100\) or ((“1.04” – 1) × 100) or 546/525 × 100 – 100 | M1 |
| 4 | A1 |
| (3) | |
| (6 marks) |
Notes
M1: Dep